package com.patent.common;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * @create 2018-05-31 20:13
 **/
public class ConvertUtil {
	//inputStream转outputStream
	public static ByteArrayOutputStream parse(InputStream in) throws Exception
	{
		ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
		int ch;
		while ((ch = in.read()) != -1) {
			swapStream.write(ch);
		}
		return swapStream;
	}
	//outputStream转inputStream
	public static ByteArrayInputStream parse(OutputStream out) throws Exception
	{
		ByteArrayOutputStream baos = (ByteArrayOutputStream) out;
		ByteArrayInputStream swapStream = new ByteArrayInputStream(baos.toByteArray());
		return swapStream;
	}
	//inputStream转String
	public static String parse_String(InputStream in) throws Exception
	{
		ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
		int ch;
		while ((ch = in.read()) != -1) {
			swapStream.write(ch);
		}
		return swapStream.toString();
	}
	//OutputStream 转String
	public static String parse_String(OutputStream out)throws Exception
	{
		ByteArrayOutputStream   baos=new   ByteArrayOutputStream();
		baos=(ByteArrayOutputStream) out;
		ByteArrayInputStream swapStream = new ByteArrayInputStream(baos.toByteArray());
		return swapStream.toString();
	}
	//String转inputStream
	public static ByteArrayInputStream parse_inputStream(String in)throws Exception
	{
		ByteArrayInputStream input=new ByteArrayInputStream(in.getBytes());
		return input;
	}
	//String 转outputStream
	public static ByteArrayOutputStream parse_outputStream(String in)throws Exception
	{
		return parse(parse_inputStream(in));
	}
}
